TY  - BOOK
AU  - Sziklai, O.
TI  - Further information on the variation of Douglas-Fir (Pseudotzuga menziesii (Merb.) Franco) in its native habitat
PY  - 0000///(s.a.)
CY  - (s.l.
PB  - s.e.)
KW  - Pseudtsuga menziessii
ER  -